Rolled steel caliper for measuring rolled wire, bar and square steel, hexagonal steel

2021-05-09

introduction

Steel produced in the steel industry is not limited to round wire rods, but also steel such as square steel and hexagonal steel. How to achieve on-line inspection will become one of the issues to be considered.

The outer diameter measuring instrument is an indispensable instrument for the automatic production line of steel pipes. The non-contact dynamic outer diameter measuring instrument capable of fast, dynamic, digital display, out-of-tolerance alarm function and analysis function is required for rolling steel rolling. The company has also developed a steel rolling caliper that can achieve the above functions and can realize the detection of wire, bar and square steel, hexagonal steel and so on.

1, the choice of caliper

According to the production characteristics, the high-line adopts LPXJ40.8 wire caliper, and the hollow steel wire adopts LPBJ90.8 series bar caliper to carry out on-line size inspection of rolled wire, bar and square steel and hexagonal steel.

2, caliper installation

The rolling caliper system is a complete set of equipment integrating optical, mechanical, electronic circuits, communication and computer software technology. The set of equipment is mainly composed of a caliper, a main control cabinet, an alarm unit, a fiber optic cable communication unit, a field display device, an LED display screen, a high pressure centrifugal fan and the like.

The caliper is installed on the equipment base in a fixed installation mode, and the lower line maintenance uses the hoisting method to move the caliper to a safe position. There is no steel guide groove on the caliper, and the gap between the guide grooves of the rolling line is directly used for measurement. After the caliper is offline, the guide groove can be installed in situ without affecting the normal production of the rolling line.

The high-line two LPXJ40.8 calipers are installed in front of and behind the reduced-size units, and are located at the guides in the middle of the two water-passing tanks (specified at the site). Each LPXJ40.8 caliper comes with 1 set of field display device and 1 LED display. The LED display has a size of 1550×1070mm and the visible distance of the displayed characters is greater than 30 meters. The live display device has a built-in 24-inch LCD monitor and an 8-inch embedded industrial computer that drives the display. The main control room IPC is equipped with a 42-inch LCD monitor.

The hollow steel wire LPBJ90.8 caliper is equipped with 2 sets of on-site display devices (without LED display). Each set of on-site display devices has a built-in 24-inch LCD monitor and a built-in 8-inch embedded industrial computer for driving the display. Two sets of on-site display devices are installed at the first floor of the main control room and at the field operation station. The main control room IPC is equipped with a 42-inch LCD monitor.

The steel caliper has its own thermometer. When the steel passes, the temperature of the steel is measured by a thermometer and converted to a room temperature of 20 °C by computer. In addition, you can set a fixed temperature to correct the size, or choose to directly display the hot size.

3. Software system for rolling steel caliper

" Lapeng Measurement and Control Software Platform " is the software system of rolling steel caliper. The system is built in a modular way. The interface, function, probe and sensor type and quantity of the software can be arbitrarily set according to requirements. The software has powerful data analysis capabilities, can be used for statistical analysis of arbitrary measurement data and fit statistical charts such as wave maps, defect maps, histograms, and pie charts.

After the measurement system is logged in, it will go directly to the main interface. In the measurement state, the maximum diameter, the minimum diameter, the average diameter, the ellipticity and the measured value of the eight-way probe of the round steel can be displayed in real time in the main interface of the round steel measuring system; the dynamic graph of the round steel section is displayed in real time; the measured data is displayed in real time. Dynamic trends. When the measured data changes within the set range, the data appears green; when the measured data is out of tolerance (ie, beyond the set range), the color of the data is red, and the dynamic graphic profile of the corresponding rolled material exceeds the maximum/minimum threshold. The main interface of the round steel measurement system is shown in the figure.

The main interface of the rebar measuring system can display the inner diameter of the rebar, the longitudinal rib height and the transverse rib height in real time; the dynamic graph of the base circle section is displayed in real time; the dynamic trend of the inner diameter measurement data is displayed in real time. The main interface of the square steel measurement system displays two side length and diagonal measurement values ​​in real time; the dynamic graph of the square steel section is displayed in real time; the dynamic trend of the side length data is displayed in real time. The main interface of the hexagonal steel measurement system displays the measured distance of the opposite side and the diagonal line in real time; the dynamic graph of the hexagonal steel section is displayed in real time; the dynamic trend of the data of the edge distance is displayed in real time.

Conclusion

The steel caliper can detect the outer diameter of the wire, bar and pipe on-line. The steel and hexagonal steel can also be used for high-precision dimensional inspection. The software has the wrong length of the roller, the ear and the head defect. The ability to detect the length of the tail defect provides strong quality support for actual production and brings great convenience to the quality inspection of steel.

Cold drawn hexagonal steel bar, hex steel bar, hexagon steel bar is produced by cold drawing from hot rolled steel round bar. Our advantages and more services of cold drawn steel round bar includes:

1) Wide range of diameters from 10mm to 150mm

2) Customized Length from 100mm to 12000mm

3) Good corner radius: 0.3mm to 1.5mm

4) Good straightness: 0.5mm/m to 2mm/m

5) Good roundness: 80% of diameter tolerance

6) Diameter tolerance:h9, h10, h11

7) Matched further processing: Grinding, polishing, straightening

8) Anti-rusty package

9) Full sets of testing equipment: Surface, Dimenstion. Mechanical properties testing

10) Fast delivery time

Steel Hex Bar, Hexagon Steel Bar, Cold Drawn Hexagonal Bar, Cold Drawn Hexagonal Steel Bar
Ningbo Beilun Tianzheng Machinery Manufacture Co., LTD http://www.sdcolddrawnsteelbar.com